The site is addurl.nu it does have quite a few directories listed, though it does not specify which (if any) are instant approval. Also I found that not all those which are listed as free actually have a free option. But it could still be useful for anyone looking for directories as it gives the PR and some have reviews.

These are all PR0, they all look the same and those I checked were registered to the same person. Individual members may wish to consider whether there is any real value in being listed in these directories.